CareerCup

So basically they just want you to break this down into basic data types and functions you would have. This could be done in a variety of ways here is a quick stab at it:

public Board {
	int activePlayers;
	player [] players;
	Deck deck;
	
	// functions
	deal -> deals out all cards from deck to players
	find_winner -> uses card classes compare to see who won hand
	player_lost -> set player as lost if out of cards
	player_won -> if only 1 player left, they won
}

public Deck {
	Card [] cards;

	//functions
	remove card -> removes card from deck like pop in queue/stack
	add card -> add card to bottom like push on queue 
}

public Card{
	// where Suit is an enum containing {spade, diamond, heart, club}
	Suit suit;
	int num;

	//functions
	compare -> compares 2 cards based on the game, depending if suit matters
}

public Player{
	Card [] hand;
	bool lost;

	//functions
	add to hand -> add to card at end like push on queue
	flip from hand -> take card from top like pop on queue/stack
	player lost -> mark player as out of cards, lost
}

With these basic elements you could code in the functionality of the game, I imagine they would be looking for correct syntax (which I didn't really do). But most likely they are looking that you can break things down into an OOP way.

The board should probably also have functions for if the game was a tie to do war, and to return the cards to the winning players hand. But we will just say that is all incorporated in the illustrious "find_winner" function :D